---
title: "MTRSetMessageReliabilityParameters(_:_:_:_:)"
framework: matter
role: symbol
role_heading: Function
path: "matter/mtrsetmessagereliabilityparameters(_:_:_:_:)"
---

# MTRSetMessageReliabilityParameters(_:_:_:_:)

## Declaration

```swift
func MTRSetMessageReliabilityParameters(_ idleRetransmitMs: NSNumber?, _ activeRetransmitMs: NSNumber?, _ activeThresholdMs: NSNumber?, _ additionalRetransmitDelayMs: NSNumber?)
```